Separating device for rubber-mills.



1.1. SHEA. SEPARATING DEVICE FOR RUBBER MILLS.

Pamnned Dec 1, 1912?.

APPLICATION FILED AUG. I0I I9I6.

mum/r01? m3 ATTORNEY prising the sub A. WEE m graur orrron.

JOHN J. SHEA, OF HARTFORD, CONNECTICUT, ASSIG-NOR TO THE HARTFORD RUBBER- WOIRKS COMPANY, A CORPORATION OF CONNECTICUT.

SEPARATING DEVICE FOR RUBBER-MILLS.

ea ers.

Specification of Letters Patent.

' Patented Dead, 1917.

To all whom it may concern:

Be it known that 1, JOHN J. SHEA, a citizen of the United States, residing at Hartford, county of Hartford, and State of Con necticut, have invented certain new and useful Improvements in Separating Devices for Rubber-Mills, of which the following is a full, clear, and exact description.

This invention relates to devices used to separate a batch of rubber on the "upper sides of the rolls of a mill so that a more thorough mixing of the batch will be produced. An object of the invention is to provide a device of this'character which may be maintained in operative position adjacent to the rolls, and may be held in inoperative position removed from the rolls, when desired.

The invention can be readily understood from the following'description taken in connection with-the accompanying drawing, in which- I Figure l is a side elevation of the device.

Fig. 2 is a front elevationof the device.

Referring now to the d awing, in which like characters of reference lar parts, 10 and 11 designate a pair of rolls of a rubber mill, illustration of the mill it-- self being omitted for the sake of brevity and clearness.

'ect matter of this invention, embodies a support '12 which may be bolted or otherwise secured to parts 13 of the mill frame above the rolls. The support is provided with bearings 14 which receive a hinge pintle 15 that is fixed in the bearings by a set screw 16. Above the pintle the bearings are provided with registering openings 17 -for a purpose which will presently appear.

A plow 18 of the general outline shown in Fig. 1 is provided with hinge eycs19 which register with the bearings 14 and receive the The plow 1s above mentioned pintle 15. thus hinged to the support and may be swung downward to operative position be tween the upper sides of the rolls midway may be tonally above the rolls, as indicated in dotted lines in Fig. 2.

Projecting obliquely upwardly'from the hinge eyes of the plow are cars 20 which are provided with openings 21 that are adapted to register with the openings 17 in the beardcsignate 'sim'i- The separating device com ingsand receive a pin which locks the plow stationary in operative position. A spring pressed pin is mounted in one of the ears 20 and seats terminally in a circunii'erential groove 2i formed in the pin 22, and holds the latter against accidental escape.

When it is desired to remove the plow from operative position, the pin 22 is with drawn and the plow is rocked upward to extend laterally over the rolls, in which position the openings 21 in the ears 20 will be disposed below the bottom edges of the bearings 14:. The pin 22 is now inserted in said openings and lodges underneath said bottom edges so that the plow is held up in inoperative position removed from the rolls.

In operation,.when the plow is locked in operative position to extend downward between the rolls, the rubber stock .which accumulates on the front roll of the mill in a thick layer, will be severed progressively by the plow and deflected from the sideso'f the plow into the batch in the usual and well known manner. When it is desired to put a. new. batch of rubber stock in the mill, the plow may be rocked up out of the way and locked in ihoperative position as above described.

Having thus described my invention,

what I claim as new and desireto protect by Letters Patentis:

1. A separating device for mills comprising a support, a plow, and means for pivotally connecting the plow to the support adapting the plow to be swung in the direction oi? the axis of the mill rolls into and out of operative position.

2. A separating device for mills, compris' ing a support, a plow hinged on the support and adapted to swing downward to operative position adjacent the upper sides 'of the rolls of the mill, and adapted to be swung upward to inoperative position laterally above said rolls, and means for locking the plow stationary on said support in operative or inoperative positions.

3. A'separating device for mills comprising a support having bearings thereon, aplow hinged on said bearings and-adapted to be swung to operative position adjacent the upper sides of the rolls of the mill, and adapted to be swung to inoperativeposition laterally above said rolls, and meansengaging said bearings and an integral portion of the plow and holding said plow stationary in operative or inoperative positions.

4. A separating device for mills comprising a support having bearings thereon, a plow hinged onsaid bearings and adapted to be swung to operative position adjacent the rolls of the mill, and adapted to be swung into inoperative position laterally above said rolls, a pin adapted to engage a projecting portion of the plow and said hearings to lock the low stationary in operative or inoperative positions, and

means on the plow engaging and holding. said pin agalnst accidental escape from place.

5. A separating device for mills comprising a support, a plow, means for pivotally connecting the plow to the support adapting the plow to be swung in the direction of the axis of the mill rolls, and means for securing the plow in operative position.

Signed at Hartford, Conn, this 22 day of July, 1916.

JOHN J. SHEA.

floples of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, 'Washington, D. C. 

